import re
from rest_framework import serializers
from users.models import User


class UserSerializer(serializers.ModelSerializer):
    class Meta:
        model = User
        fields = ('id', 'username', 'mobile', 'email', 'password')
        extra_kwargs = {
            'password': {
                'write_only': True,
                'max_length': 20,
                'min_length': 8

            },
            'username': {
                'max_length': 20,
                'min_length': 5
            }
        }

    def validate_mobile(self, attrs):
        if not re.match(r'1[3-9]\d{9}', attrs):
            raise serializers.ValidationError('手机格式不正确')
        return attrs

    def create(self, validated_data):
        # # 重新调用父类方法
        # user=super().create(validated_data)
        # # 对父类保存的用户对象的密码加密
        # user.set_password(validated_data['password'])
        # user.save()

        user = User.objects.create_user(**validated_data)

        return user
